Omron Electronics 2SMPB-01-01 Absolute Pressure Sensor is a high accuracy and small size absolute pressure sensor with a low current consumption. The 2SMPB-01-01 is Omron's most accurate pressure sensor to date, providing readings relative to a perfect vacuum to ±6Pa. The module is just 3.8mm x 3.8mm x 1mm maximum, small enough to integrate into portable instruments. It provides an I2C output for easy integration into digital electronics. It is ideal for applications that require lower RMS noise and or battery power.